The Blackberry is more than just the phone, the Blackberry OS offers business users a service to increase their productivity. It is a communications device allowing users to bring their work outside of the office. The most important function of the Blackberry OS is the email support. The Blackberry offers an extensive email client supporting: Internet Message Access Protocol (IMAP) AND Post Office Protocol (POP3) as well as Exchange email support. The OS offers a full HTML browser, as well as support for cloud applications (internet based apps). The calendar application offers business users a simple and clean interface to view upcoming appointments and meetings. The phones database for contacts